Facts & properties of the element carbon in the periodic table, including its history, allotropes, compounds, & the carbonate and carbide ions| ChemTalk
A nucleophile is an electron-rich molecule that can form covalent bonds by donating electrons to electron-poor sites.| ChemTalk
Iodine element makes a bold statement with its dark color and violet vapor. Find out why this element of the periodic table is so interesting.| ChemTalk
Learn the properties of the transition metals, aka transition elements, groups 4-11 on the periodic table, plus fun facts and their chemistry| ChemTalk
Learn the properties of the alkaline earth metals, elements in group 2 on the periodic table, along with fun facts, their chemistry and uses.| ChemTalk
Calcium is an important element of the periodic table in biology, and medicine. Learn about calcium compounds, properties and uses, history, fun facts, and more!| ChemTalk
Ionic vs Covalent bonds, electrons are shared equally in covalent bonds, while electrons are mainly on one atom in ionic bonds.| ChemTalk
How to write electron configurations & orbital diagrams for elements, with Hund's rule, Aufbau's principle & the Pauli Exclusion Principle| ChemTalk
The world's best periodic table! Enjoy this elegant, beautiful interactive table of the elements, with links to complete element articles.| ChemTalk